Smoking pipe



April 22, 1952 M. WARD 2,593,819

SMOKING PIPE Filed March, 29, 1948 44 Eig@ INVENTOR. Maf/f Wd/"/ AZZ/5% n Tra'mvsr Patented Apr. 22, 1952 UNITED STATES OFFICE 2 Claims. 1

My present invention relates to an improved smoking pipe embodying a fresh air inlet plug by means of which air may be admitted to the stem of the pipe to be mixed with the smoke from the burning tobacco, and including novel means for controlling the mixture of air and smoke.

While the device ishere described as applicable to pipes it will be understood that it may with equal facility be adapted and used in cigarette or cigar holders for the same purpose.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention according to the best mode I have thus far devised, but it will be understood that various changes and alterations may be made in the exemplified structure within the scope of the appended claims.

In the drawings:

Fig. 1 is a longitudinal vertical sectional view of a smoking pipe embodying the device of my invention.

Fig. 2 is a top plan view of the pipe.

Fig. 3 is an enlarged detail View in section of the air-mixing device showing by dotted lines a maximum open position of the device.

Referring now to the drawings wherein I have illustrated the present preferred embodiment of my invention, I employ a pipe for smoking consisting of a bowl 2 of suitable material as briar root and formed with a stem 4 having a bore 6 connecting the bottom of the interior of the bowl with a chamber 8 in the stem.

A conventional bit l lits into the stem chamber and a passage l2 permits the smoker to draw smoke from the bowl through the stem and bit.

In the stem, above the chamber, I provide an aperture I4 in which is pressed the collar I6 interiorly threaded at I8 and extending well above the upper surface of the stem. A nut threaded at 22 and formed with a kerf 24 is threaded into the collar and has a central vertical bore 2B.

An identical nut 28 also fits into the collar and the aligned vertical bores of the nuts receive the tube 30 having interior bore 32 open to the atmosphere and the lower end of the tube is cut angularly at 34 from a point 36 on one side to the end of the tube approximately central thereof at 88. The flat end portion 40 is adapted to cooperate With the lower wall 42 of the chamber 8 and the spacing distance between the portion 40 and the wall 42 controls the amount of smoke passing thereby.

The formation of the uncut, left-hand lower end of the air tube as seen in Fig. 3 provides a barrier against entry of smoke into this end of the tube, but the cut-away right-hand portion 34 insures proper mixing of the smoke with the incoming air currents after the air emerges from the tube.

The tube at its upper end has a i'lxed cap 44 fitting snugly about the collar I6 and an indicating arrow 46 on the cap shows the position of the angular cut of the tube with reference to the chamber length.

A number of caps 4e having tubes 30 with bores 32 of various sizes may be supplied to assure the proper volume of air, according the desires of the individual smoker. The indrawn air will be limited in volume, as permitted by any one cap and tube.

The depth of the tube end into the chamber, as determined by the position of nut 28, controls the amount of smoke mixed with the indrawn air and it will be obvious that the lower the tube in the chamber the less smoke will be admitted to form the mixture while the elevation of the tube will increase the percentage of smoke.

The cap and tube may be removed for cleaning and the arrow will enable the user tol properly replace the tube. p

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is:

1. A smoking pipe including a stem having a bore and a smoke chamber forming part of the bore, a tube having a bore and mounted in the stem, the lower end of said tube extending into the chamber and the bore of the tube being open to the atmosphere, means including an interiorly threaded collar in the stem and nuts in the collar bored to receive the tube, and a cap on the tube supported by a nut for adjusting the tube with relation to the stem to vary the mixture of air and smoke passing from the chamber.

2. A smoking pipe including a stem having a bore and a smoke chamber forming part of the bore, a tube having a bore and mounted in the stem, the lower end of the tube being angularly cut through a portion of its bore leaving a straight end portion parallel with the lower wall of the chamber, said tube extending into the chamber with its bore open to the atmosphere, means including an interiorly threaded collar in the stem and nuts in the collar bored to receive the tube, and a cap on the tube supported by a nut for adjusting the tube with relation to the stem to vary the mixture of air and smoke passing from the chamber.

MARK WARD.

REFERENCES crrEp The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,212,590 Waigand Jan. 16, 1917 1,420,117 Luedke June 20, 1922 1,468,318 McMillan Sept. 18, 1923 FOREIGN PATENTS Number Country Date 9,139 Great Britain of 1888 449,046 France -----L Dec. 13, 1912 

